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,UNITED STATES PATENT Omen.

JOSEPH w. sUarnENAnT AND JAMES nfrnneuson, or ASTORIA, onneon.

HYDRAULIC FILE-DRIVER.

g r i V 5- v Q SPECIFICATION forming part of Letters Patent No. 283,300, dated August 14, 1883,

" Application filed February 15,1883. (No model.) i

To all whom it may concern:

Be it known that we, J OSEPH XV. SURPRE- mm: and JAMEsEjFERGUsoN, both of As toria, in the county of Olatsop andgState of Oregon, have invented a new and Improved Hydraulic Pile-Driver,of which the following is a full, clear, and exact description.

The object of our invention is to provide a new and improved device for driving, piles by means of water.

The invention consists of a bent pipe adapt-- ed to fit against the side of the pile and in a longitudinal groove in the pile. The pipe is held against the pile and in the groove by suitable devices, and is provided with means forrai'sing it after the pile has been sunk.

. Means are provided for coupling a hose-pipe with the pile-pipe. i If water is forced through the pipe and ejected from the lower end of the same, it washes away the sand under the pile and causes the same to descend into the ground.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar latters of reference indicate corresponding parts in all the figures.

Figure 1 is a longitudinal elevation of the lower end of the pile to which our improved pile-driver is attached. Fig. 2 is a longitudinal front elevation of the pile, the piledriver being removed. Fig. 3. is a longitudinal elevation of our improvedpile driver.' Fig. etis a cross-sectional view of the pile and the pile-driver on the line a" m, Fig. 1, looking upward.

The pile A, which is to be driven, is provided at its lower end with arlongitudinal groove, B, which gradually increases in'depth toward its lower end, the groove terminating at the end of the pile. A pipe, 0, is bent at its lowerend, so as to fit closely against the side of the pile and against the bottom of l the groove B, which pipe is placed against the pile and the bottom of the groove, so that -4 its lower end will be about flush with the lower end of the pile. The pipe is held in place by a block, E, nailed on the pile and across the pipe at its bend, so that the pipe can rest on the block. A rope, strand, or

cord, F, is passed around the upper end of the pipe 0 and the pile A. The pipe G is provided at its upper. end with a screw-collar, G, on which a hose-coupling can'be The operation is as follows: The pipe 0 is;

held to the pile and in the groove B in the manner described, and the rope L is attached to the link J. The pile and the attached pipe are then lowered until they rest upon the bed of the river or place where the pile is to be sunk, whereupon water is admitted under pressure to the pipe 0 by means of a hose, M,- which has been previously coupled to the up per end'of the pipe 0. The water issuing from the lower end of the pipe 0 washes away the sand, silt, or other material into which the pile is to be drive11, thus permitting the pile to descend. After the pilehas been 'sunk or driven sufficiently the pipe 0 is pulled up or raised by means of the rope L, and is .then

ing piles by means of water-jets, as there are various well-known methods of employing such jets for this purpose; but,

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. The combination, with a pile having a groove extending from the side to the center 7 of its lower end, of a curved pipe adapted to rest against the pile along its side and in said groove to discharge at the center of said lower end, as described.

2. The combination, with the pile A, havof; the bent pipe 0 and the block E, substantially as herein shown and described,and for the purpose set forth.

3. The combination, with the pile A and ing a longitudinal groove, B, at its lower end,

the pipe 0, of the band. H, surrounding'the rope L, substantially as herein shown and deupper end of the pipe, andthe link J, for scribed, and for the purpose set forth. attaching a rope, substantially as herein shown and described, and for the purpose set forth.

4. The combination, with the pile A, having a longitudinal groove, B, at its lower end, of the bent pipe 0, the block E, and the JOSEPH XVM. SURPBENANT. JAMES E. FERGUSON.

Vitnesses:

E. C. HOLDEN, FRANK BARROW. 

